A lot of additional features that many Linux users may be accustomed to are not portable across other Unix-like operating systems.

Graphical power management applications are among them.

Does OpenBSD have some kind of built in power management interface? Say, ACPI settings in a config file somewhere?

My specific problem: OpenBSD allows me to install gnome-screensaver, which is great, because I like my screen to be showing cool graphics when I am not using the computer. However, after the screen saver comes on, something (Gnome? OpenBSD?) eventually shuts the monitor off. This saves energy but defeats the purpose of having cool screen savers. Normally I'd go to the gnome-power-management interface and just adjust a setting to prevent the monitor from powering itself off.